Unit 1 Review

What is the relationship between the number of hours worked and the amount earned shown in the table?

• cannot be determined

• ratio

• non-proprtional

• proportional

Liam charges a $10 service charge plus $7 per hour shoveling snow. Determine whether the relationship between the two variables is proportional.

• proportional

• non-proportional

• cannot be determined

• ratio

Liam charges a $10 service charge plus $7 per hour shoveling snow. Which table correctly displays his earnings after each hour?

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The table shows the amount Maggie earns each hour she babysits. Determine whether the relationship between the two quantities in the table is proportional. Explain your reasoning.

• Proportional, the line formed by the ordered pairs is a straight line and it does pass through the origin.

• Not proportional, the line formed by the ordered pairs does not intersect the origin.

• Not proportional because the graph of the relationship does not pass through the origin.

• Unable to determine.

The table shows the cost of shampoo at a discount store. Determine whether the relationship between the two variables is proportional. Explain your reasoning.

• Proportional. The graph of the relationship is a straight line that passes through the origin.

• Not proportional. The graph of the relationship does not pass through the origin.

• Not proportional. The line formed by the ordered pair is not straight.

• Unable to determine

Simplify.

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• 20

Simplify.

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• 16

• 9

• 1

Simplify.

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• 
• 25

• 4

Simplify.

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• 16

• 4

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Kayla earns $6 per hour babysitting. Which of the following statements is true about the relationship between the number of hours Kayla works and her earnings?

• The relationship is nonproportional because the points do not form a straight line.

• The relationship is nonproportional because the line through the points does not intersect the origin

• The relationship is proportional because the graph of the line passes through the origin and has a constant rate of change.

• The relationship is proportional because there is not a constant rate of change between the points.